Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – By addition of entire unsaturated molecules – e.g.,...
Reexamination Certificate
2005-06-13
2011-12-13
Bullock, In Suk (Department: 1772)
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
By addition of entire unsaturated molecules, e.g.,...
C585S502000, C585S520000, C585S521000, C585S527000, C585S522000, C585S523000, C585S510000, C585S511000, C585S512000
Reexamination Certificate
active
08076523
ABSTRACT:
This invention relates to a process for the oligomerization of at least one olefinic compound in the form of an olefin or a compound including art olefinic moiety by contacting the at least one olefinic compound with at least two different catalysis, namely a tetramerization catalyst and a further oligomerization catalyst. The tetramerization catalyst comprises a combination of a source of a transition metal and a ligating compound of the formula (R1)mX1(Y)X2(R2)n. The invention also relates to an oligomerization catalyst comprising the combination of (i) source of transition metal for both a tetramerization catalyst and a trimerization catalyst; (ii) a ligating compound for a tetramerization catalyst: (iii) a different ligating compound for a trimerization catalyst: and (iv) optionally an activator.
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Blann Kevin
Bollmann Annette
Maumela Hulisani
Bullock In Suk
Etherton Bradley
Finnegan Henderson Farabow Garrett & Dunner LLP
Sasol Technology (PTY) Limited
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